Improvement in machinery for making paper bags



G. H. MALLARY.

Paper Bag Machine.

Paented July 28,1868.

Qimmy To all ywhom 'it may concern UNITED STATES GEORGE E. MALLARY, 0E NEW YORK, N. Y.

IMPEovEMENr In MAcHrNERY Fon MAKING PAPER BAGS.

Specification formi-ug part of Letters Patent No.;80,298, dated July 28, 1868.

' 'Be it known that I, GEoneE H. MALLARY, of the city of New York, county and State of New York, have invented certain new and useful Improvements in Machinery for making l Paper Bags; and do hereby 'declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings and the letters and figures of reference marked thereon, making partof this,

specification, in which- Figure l is a. top face view of my machine. Fig. 2 is a vertical longitudinal sectional view of the same out through on the dotted line ct a of Fig. 1. Fig. 3 is an end view of the same machine, showing the right-hand end of Figs.

1 andv2. Fig. 4'is a lside view of the central ,portion ofthe frame of the machine detached, showing one end of the gate which carries the cutting blade or knife, and the cam by which it is moved. Fig. 5 is a detached end view of the apparatus, by which the bag, in process of making, is pasted and folded at the closed end. Fig. 6 is a vertical sectional detached view of -the' clamp by which the bag, in process of making, afterbeing cut from .the sheet, is

moved forward tothe eind folding and pasting apparatus. l I

In the several drawings the sameletters and gures refer to the same parts.

A is the frame, made of iron or other 'suitable material, which may be formed of two sides, each cast in one piece, set and held together by cross bars or rods b bolted or screwed to the sides. A plate of iron, 2, con stitntes a closed top or table covering alittle more .than one-half of the length of the frame. The balance of the top consists ofthe supporting-bars u, extending from the end of the plate 2 to the opposite end ofthe frame. Upon this frame the several parts Iof the machine are mounted.

` crank, c, which actuates the swinging lever D,

that is pivotcd at e in a joint formed with the short post f set inthe crossbar g, the crank c working in the sliding boxh held between the two branches d d of the lever D. E'is a second swinging lever, pivoted at i in the post j set'in the cross-bar k, which is actuated by the lever D bymeans of the connectingbar F, hinged at l to the short arm on attached to the lever D, and fastened to the lever E by the pin a, that passes through the end of the bar F and the mortise ofin thc lever E. The object of this mortise is to permit the length-- e'ning and shortening of the sweep of the lever E by raising or lowering the bar in the mortise.' This lever E is connected with and e'ommunicates motion to the clamp formed of the bar L and the shaft K, with its lags t, by means of the short connectingbar l, jointed into the arm J, extendingfrom the rod or shaft K. This clamp is connected witha frame consisting of two side pieces o and o', and the cross-'bars p and L, the bar L forming at once a part of the frame and the upper jaw ofthe clamp. On the inner faces of the side pieces o and o are ribs, which dt into grooves in the ways r fr', which are fastened on the inner side of the top rail of the frame A, in which the clamp can slide back and forth. VInthis frame, and immediately underneath the bar L, is a revolving shaft, K, extendingfrom side to side ofthe said clamp-frame, to which is attached 'the arm J. 0n the top surface of this shaft is xed a series of lags, t, Wide enough to just pass between the supportingbars u. The shaft K, with its lags t, constitutes the lower jaw of the clamp.

Upon the forward end of thc Vmachine is fastened 'a flat frame, M, out out of a metal plate, designed to hold between its sides the paste-reservoir N, which is placed on Short posts Q, thus raising it a shortdistance above the surface of the frame A.

R R are two guideroll'ers, mounted in the varms l? P',`the upper roller being adjustable by means of elongated boxes.

Near the center of the frame is arranged a knife, S, extending across the machine, its edge downward, fastened to the under side of the bar T. At either end of this bar T is a leg, U, vextending downward on the outside of the frame A, between ways e c.. lThe lower ends of these legs, brought to a rounded edge,

rest on cams V, fixed on the ends of the shaft v PATENT OEEIGE.

' a vertical reeiprocatin g motion, itl being raised by the cams and allowed to fall by its own weight.

l Y is a slide, some three or'four inches wide, 4 Xplaced between ways that are fastened to the under side of the table 2, midway between the sides of the frame A. 0n the under side of this slide Y is placed a smaller slide, W, and loosely connected with it by means of screwbolts, with broad heads, passing through slotted holes. These slotted holes are made long enough to permit the movement of the slide W, of lthree or four inches, upon the slide Y. Hinged into the end 3 of the slide Y is a revolving jaw, 31, made in the form represented. The lower portion of this jaw constitutes a segment of a toothed pinion, which, with the toothed end of the slide W, forms a rack' and pinion. Itis evident that by this arrangement the movement ofthe slide XV backward and forward on the slide Y remaining at rest, the jaw 31 will be revolved on its axis, alternately throwing its lip over onto the upper y face of the slide WV and then downward below formed of flat bars of wood or iron, or otherv material, screwed down'upon the table at a distance apart-corresponding to the width of the bag. Their under inner'edges are cut away so as to form grooves deep enough to permit two thicknesses of paper to pass through them, and at Athe ends toward' the knife-S are enlarged laterally and vertically with a gradually expanding twist, so that, when a sheety of paper is drawn inA under them, the sides orv edges will be gradually folded over and laid down underneath the lips of the folders.

4 is a shaft, on which are placed two cams, 5 and 5"-, the faces of 'which are cut away around about one-half their` circumference, so that they will act upon the paper passing under them only durn g a part of their revolution'.` This shaft-4 is actuated by a belt from the pulley 10 on the pulley 9 and the gears 7 and 8. The wheel 7 has teeth upon only one-half its periphery, thus allowing the shaft 4 to remain at rest during one-half of the revolution of the wheel 7. l

12 is a paste-reservoir, having a longitudinal opening near` the bottom on one side,through which opening a portion of the periphery of the pasting-roller 13 extends into the reservoir, thus lying in contact with the paste, and is so adjusted as to so nearly fill the opening that the paste will not escape, and yetpermit a portion to be taken np on the surface of the roller and carried ont. To this roller is given an intermittent rotary motion by means o'f a v closed.

beveled so as to lit the curve of the roller 13,

ratchet-wheel, 14, and a pawl attached to the erosshead Z, which in its upward and downward motion revolves the roller 13 one notch of the wheel 14 at each movement.

Z is a cross-head moving in ways iix'ed on the plate 16 at the end of the machine, to which a vertical reciprocating motion is given Vby means of the lever G and the vcam 17.v

This lever swings on the shaft 1S, and is connected with the cross-head by the link 19. rlhe ofiice of this crosshead is twofold, viz., to carry the end-lap of the bag against 'the pasting-roller 13, and turn the said lap over preparatory to its entering between the rollers 21 .and 21', to be by them pressed and The upperledge ot'- the cross-head is which enables it to press the lap of the bag against the roller, so as to take np suiiiclent paste to fasten it, at the same time that 1t turns it over the edge of the folding-blade 15l attached to the upper face of the table 2, just underneath the roller 13.v To the end of the machine in front of ,thel crossshead Z is a pair of rollers,21` 21', held by thc arms 20, the upper one of which receives motion from the shaft B by a belt ou the pulleys 22 and 23. The upper rolleris held inV slotted boxes, which permit it to be adjusted to the varying thicknesses of the paper passing between them.

B4 and 34' are two spring-guides, designed to guide the paper into the folders and assist in the process of folding. They are attached to the cross-bar 3S, which is held by the arm '33 connected to the bar 35.

The table or plate 2 is cut away from the end back as far' as the jaw 31 traverses wide enough to permit the passage of the said jaw.

rlhe operation of this machine is as follows: The paper is in' a continuous sheet, wound into a roll, and placed on a convenient rcel. The end is introduced between the rollers R It', and carried forward over the supporting-bars u between the jaws of the clamp L t. The movement forward of the lever E will then close the said clamp by rolling the shaft K on its axes and bringing the lags t up against the bar L. The paper thus held is then carried forward toward the knife S a distance determined by the connection of the lever E with the crank c. When the lever E commences itsbackward movement,its first action is to rock the shaft K backward, thus swinging the lagst downward and away from the bar L, thus liberating .the paper, which remains at rest, while the clamp moves back to its limit and again takes hold of the paper. and moves it forward underneath the knife S; a piece 'of paper is then cnt off of suitable length for a bag, the edge ot' the knife passing through the paper into a narrow slot or opening, 36, in the table. As soon as 4it is cut from the sheet, the piecevis seized by the clamp 31 and drawn forward into the folders 6` and 6', which fold the sides over so that the edges meet and lap in the center far enough to form a seam, "the forward end of the bag Yhaving been carried forward far enough to bring the lap at the 'end just under the pasting-roller 13. The reverse movement Y cross-head2 then moves up, pressing the endlap of the bag against the pasting-roller 13, and at the same time turns it upward over the edge of the folding-blade 15, so that when the bag is moved forward between the pressnrerollers 21 and 21', which is done by the cams 5 and 5', that, impinging upon the upper surface of the papers, are brought into vaetion at therightmoment, the lap is pasted firmly down upon the bag, formingv the closed end. By the passage of the bag between these rollers, the side seam is-also pressed and pasted firmly together, and the bag is delivered from the rollers eompleted. The paste for the side seam is deposited near one edge of the paper in its progress through the machine by means of a pasting device in the pastereservoir N, which is adjusted over the side of the sheet at Athe proper place. This. device muy consist of a disk or Ythin Wheel arranged to rotate in the bottom ot' the reservoir, a portion4 of its periphergr extending through an opening in the bottom of the reservoir and resting on the paper. As the pnper moves ibrwarrhthe dist; eeuscd to re- Volve, and deposits on the paper line of paste.

y The lap forming the elosed end of the bag is formed by having the knife S bent so that the paper is out at the center of the sheet a distance equal to the width of the folded bag, somewhat longer thanat the sides.

What I claim as new, and desire to secure by Letters Patent, is-

1. The clamp formed of the bar L, the shaft K` with its lags t, when combined with the supporting-bars l1/,substantially as set forth.

2. The clamp formed of the slides YV and Y, and the jaw 3l,when combined with the folders 6 6 and the cams 5 5f, substantially as v described.

3. The cross-head Z, the folding-blade 15, and the pasting-roller 13, combined and arranged snbstantiaily as described.

4. The levers D and E, the crank o c,the

clamp formed of the bar L, and the shaft K,

with its lags t, and the clamp formed oi the slides W and Y and the jaw 31, all combined and operating substantially as described.

GEORGE H. M ALLARY.

vWitnesses:

J. P. FITCH, THOs. M. WHEELER.. 

